Performance assessment of Beijing Lightning Network (BLNET) and comparison with other lightning location networks across Beijing

Srivastava, Abhay; Tian, Ye; Qie, Xiushu; Wang, Dongfang; Sun, Zhongchang; Yuan, Shanfeng; Wang, Yu; Chen, Zhixiong; Xu, Wenduo; Zhang, Hongbo; Jiang, Rubin; Su, Debin

doi:10.1016/j.atmosres.2017.06.026

Cited by 47 publications

(27 citation statements)

References 33 publications

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“…More detailed instrumental setup and site distribution of BLNet can be found in Y. Wang et al (2016b) and Srivastava et al (2017). Both the optical frames and fast antenna signals were GPS-time stamped.…”

Section: Experiments and Datamentioning

confidence: 99%

Fine Structure of the Breakthrough Phase of the Attachment Process in a Natural Lightning Flash

Jiang

Srivastava

Qie

et al. 2021

Geophysical Research Letters

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The attachment process in cloud-to-ground lightning flashes is a crucial process that eventually switch on the discharge route between the cloud and the ground, acting as a transition from the leader stage with a peak current of 1-2 kA to the return stroke stage with a peak current of several tens of kiloamperes (Pu et al., 2019; Rakov & Tran, 2019). In response to the downward leaders starting from the charged clouds, upward connecting leaders (UCLs) of the opposite polarity are initiated from the grounded objects, extend their channels toward the approaching downward leader and make contact, followed by the collision and return stroke (Saba et al., 2017). The progress of the knowledge of lightning attachment experienced the identification of the existence of UCL at the early stage (Golde, 1967; Orville, 1968), later the investigation of the characteristics of the leaders that determine the connection point or influence the selection of contacted leaders (Jiang et al., 2015; Lu et al, 2013, 2016; Qie & Zhang, 2019), and more recently the exploring of the so called breakthrough phase (BTP) which is one of the most poorly understood processes in lightning physics (Tran & Rakov, 2017).

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Section: Experiments and Datamentioning

confidence: 99%

Fine Structure of the Breakthrough Phase of the Attachment Process in a Natural Lightning Flash

Jiang

Srivastava

Qie

et al. 2021

Geophysical Research Letters

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“…The station distribution and the plan view of the mapped three‐stroke +CG are shown in Figure 1, taking the central station, DQS, as the origin of the coordinate system. Fast and slow antennas are deployed at each station, and there are magnetic and/or VHF sensors at some of the stations (Srivastava et al, 2017; Wang et al, 2016). The detection frequency bands for the slow, fast, and VHF antennas are 10 Hz to 1 MHz, 1.5 kHz to 1.5 MHz, and 69–75 MHz, respectively.…”

Section: Experiments and Datamentioning

confidence: 99%

Origin of an Uncommon Multiple‐Stroke Positive Cloud‐to‐Ground Lightning Flash With Different Terminations

et al. 2020

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An uncommon three‐stroke positive cloud‐to‐ground (+CG) lightning flash was observed by synchronous multifrequency radiation sensors, and the three‐dimensional development of the channel was carefully mapped. Results show that three positive strokes grounded at different points approximately 4–8 km apart and time intervals between neighboring +CG strokes were 85 and 222 ms, respectively. This +CG flash was preceded by an intracloud (IC) discharge. The locations of the termination points on the ground were just below the preestablished horizontal IC discharge channels, and the three strokes were linked with each other through sharing horizontal negative leader channels inside the cloud. There were stepping pulses less than 0.4 ms before the first and second return strokes (RSs), and their location results were distributed nearby the following RS, indicating that the pulses might be associated with the attachment process. The first and second positive strokes occurred when the horizontal in‐cloud negative channel stopped extending, while the third positive stroke occurred below the opposite end of an advancing negative leader in the cloud. The above results suggest that the downward positive leader preceding the strokes possibly developed either from different decayed leader channels or from the opposite end of an advancing leader channel. A high‐speed camera captured a downward positive attempted leader from another +CG flash, revealing how a downward positive leader incepted from a horizontal negative lightning channel.

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“…The waveform features of lightning pulses in each station were analyzed, and the information on the lightning type and arrival time recorded at each station was transferred to the central station for the three-dimensional lightning mapping. The detection efficiency and location accuracy for total lightning was 93.2% and 250 m, respectively [43]. LIPS sensors work at 1 kHz-12 MHz.…”

Section: Radars and Lightning Detection Networkmentioning

confidence: 98%

Investigation of Thundercloud Features in Different Regions

et al. 2021

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A comparison of thundercloud characteristics in different regions of the world was conducted. The clouds studied developed in India, China and in two regions of Russia. Several field projects were discussed. Cloud characteristics were measured by weather radars, the SEVERI instrument installed on board of the Meteosat satellite, and lightning detection systems. The statistical characteristics of the clouds were tabulated from radar scans and correlated with lightning observations. Thunderclouds in India differ significantly from those observed in other regions. The relationships among lightning strike frequency, supercooled cloud volume, and precipitation intensity were analyzed. In most cases, high correlation was observed between lightning strike frequency and supercooled volume.

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Performance assessment of Beijing Lightning Network (BLNET) and comparison with other lightning location networks across Beijing

Cited by 47 publications

References 33 publications

Fine Structure of the Breakthrough Phase of the Attachment Process in a Natural Lightning Flash

Fine Structure of the Breakthrough Phase of the Attachment Process in a Natural Lightning Flash

Origin of an Uncommon Multiple‐Stroke Positive Cloud‐to‐Ground Lightning Flash With Different Terminations

Investigation of Thundercloud Features in Different Regions

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